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javascript

An event handler can be considered a trigger that executes code when something happens, in the ‘event’ of a click or move your mouse over a link, submit a form etc. onClick onClick handlers execute something only when users click on buttons, links, etc. Let’s see an example: <html> <script> function specialsauce() { alert("Thank you!") […] Read more – ‘Event handlers’.

Prose is structured in sentences and paragraphs in the english language. In Javascript we structure our code in lines of instruction and functions. To create javascript that is easy to understand and maintain the code must be broken into smaller modules. These modules or packages of instructions are called functions and can be called upon […] Read more – ‘Functions’.

Let’s first look at an example: <script type="text/javascript"> var x=window.confirm("Are you sure you want to quit") if (x) window.alert("Thank you.") else window.alert("Good choice.") </script> <script type="text/javascript"> var x=window.confirm("Are you sure you want to quit") if (x) window.alert("Thank you.") else window.alert("Good choice.") </script> There are several concepts that we should know. First of all, var x= […] Read more – ‘Variables and Conditions’.

We can’t talk about JavaScript without mentioning the DOM, an important concept to understand about how javascript works. The Document Object Model or DOM provides a structural representation of an HTML or XML document, enabling us to modify its content and visual presentation. Essentially, it connects web pages to scripts or programming languages or alternately, […] Read more – ‘Document Object Model’.

This is a quick introduction to Javascript for people new to programming. I’ve broken down the fundamentals of coding in Javascript into the following small chunks: Embedding and Including Javascript Write and Writeln Document Object Model Message Boxes Variables and Conditions Functions Event Handlers Read more – ‘Javascript for Beginners’.